如何在 ASP.NET Core 7 禁用自動日志寫入 EventLog？

Question

我有一個簡單的 ASP.NET Core 7 Web API 我希望能夠寫入信息 Windows EventLog。

問題是每個對Get()操作的請求都會自動寫入我想禁用的 EventLog 中的大約 7 個日志，例如：

Request finished HTTP/2 GET https://localhost:44382/weatherforecast - - - 200 - text/plain;+charset=utf-8 2.3546ms
Executed endpoint 'LogTest.Controllers.WeatherForecastController.Get (LogTest)'
Executed action LogTest.Controllers.WeatherForecastController.Get (LogTest) in 0.827ms

我希望能夠將信息日志寫入 EventLog，因此為了禁用 7 個自動日志，我嘗試像這樣過濾 LogLevel

eventLogSettings.Filter = (x, y) => y >= LogLevel.Warning;

但是之后

_logger.LogInformation("My Log Test");

未寫入事件日志。

這是我在Program.cs中的代碼：

var builder = WebApplication.CreateBuilder(args);
    
builder.Logging.ClearProviders();
builder.Logging.AddConsole();
    
builder.Logging.AddEventLog(eventLogSettings =>
    {
        eventLogSettings.LogName = "LogTest";
        eventLogSettings.SourceName = "Test1";
    
        eventLogSettings.Filter = (x, y) => y >= LogLevel.Warning;
    });
    
builder.Services.AddControllers();
var app = builder.Build();

app.UseHttpsRedirection();
app.UseAuthorization();
app.MapControllers();
app.Run();

在WeatherForecastController.cs中：

using Microsoft.AspNetCore.Mvc;

namespace LogTest.Controllers
{
    [ApiController]
    [Route("[controller]")]
    public class WeatherForecastController : ControllerBase
    {
        private readonly ILogger<WeatherForecastController> _logger;

        public WeatherForecastController(ILogger<WeatherForecastController> logger)
        {
            _logger = logger;
        }

        [HttpGet]
        public string Get()
        {
            _logger.LogInformation("My Log Test");

            return "Test";
        }
    }
}

在此先感謝您的幫助，

股份公司

Answer 1

您可以嘗試在 appsettings.json 中進行如下設置：

"EventLog": {
      "LogLevel": {
        "Default": "Information",
        "Microsoft": "Warning"
      }
    }

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